(单选题)
Ming Ming is my close friend. We ______ each other since he came to my class.
A.know
B.knew
C.are known
D.have known
参考答案:D
参考解析:
考查现在完成时。句意:明明是我的密友。自从他来我们班我们就认识了。根据时间状语since he came to my class可知,主句用现在完成时,表示从过去时间开始,延续到现在。故选D。
知识点:
